Still a few days to decide if going to my gp is a good choice, some vallid points being said about that.
Advice given should be taken in it's entirety or not at all. You asked the question 'Lost in Alcohol?' and the answer is 'Yes you are'. You cannot control it, you need to get some help. You have admitted your problem so should be treated compassionately, but that isn't going to last for ever.
There is no evidence that "having a couple of drinks after a particularly bad day can be good for some in that it helps their stress levels." In fact it's been looked at and found to be not the case.
When I do a hard day (as noted earlier 43 deg C here the other day which I think equates to about 109 F) I enjoy a beer at the end. I crave a beer at the end.
When you get back to the UK you should also call the Drunkline number given above.